Load gathering, pressing, and expelling device



|. SICARD 2,339,360

LOAD GATHERING, PRESSING, AND EXPELLING DEVICE Jan. 18, 1944.

Filed March 24, 1943' 14 Sheets-Sheet 1 Inventor I ZCdid Attorneyfiezze'e (I I. SICARD Jan. 18, 1944.

LOAD GATHERING, PRESSING, AND EXPELLING DEVICE Filed March 24, 1943 14Sheets-Sheet 2 I Inventor flee d 2407 4 By 6 Z y Attor ys Jan.T8, 1944.l. SICARD 2,339,360

LOAD GATHERING, PRESSING, AND EXPELLING DEVICE Filed March 24, 1943 14Sheets-Sheet 3 Inventor 1R 8 fieize dz'cai' Q By Attorneys I. SICARDJan. 18, 1944.

LOAD GATHERING, PRESSING, AND E'.rELLING DEVICE 14 Sheets-Sheet 4 A Md mh J 6 NM 1$: QW wk I m wmw \mv wwfi w Q M I .w a

Jan. 18, L s C LOAD GATHERING, PRESSING, AND EXPELLING DEVICE FiledMarch 24, 1943 l4 Sheets-Sheet 5 Inventor fieize'e (Sz'car l. SICARD2,339,350

L OAD GATHERING, PRESSING, AND EXPELLING DEVICE Flled March 24 1943 14Sheets-Sheet 6 I Jan. 18, 1944.

' Inventor Attorneys Jan. 18, 1944. I. slcARb 2,339,360

LOAD GATHERING, PRESSING, AND EXPELLING DEVICE Filed March 24, 1943 14Sheets-Sheet 7 F7 1 1 4 ,jZ 87 7 55 0 45,11 3y igi I 78 a '9 ...m 52 iii71 1 'HJ a, 6 528 69 Inventor li erze dz'card By Attorney5 Jan- 18,SICARD LOAD GATHERING, PRESSING, AND EXPELLING DEVICE Filed March 24,1943 14 Sheets-Sheet 8 L llll 'Tr lllll'j Inventor 110 fierzee Z CdFd Ii95 y 103 Lg:\ rymtornew Jai l8, 1944. l. SICARD I 2,339,360

LOAD GATHERING. PRESSING. AND EXPELLING DEVICE Inventor Ji'e/ze 61202 By6 g I Attorneys I. SICARD Jan. 18, 1944.

LOAD GATHERING, PRESSING. AND EXPELLING DEVICE Filed March 24, 1945 14Sheets-Sheet 10 H lllmllllwmum ll Q5 HIHHI Inventor did Attorneys Jan.18, 1944. SICARD 2,339,360

LOAD GATHERING, PRESSING, AND EXPELLING DEVICE I 1Z6 "36Jlllllllulllllllllllllll"ll" m- Attorneys ,Jan. 18, 1944. SICARD2,339,360

LOAD GATHERING, PRESSING, AND EXFELLING DEVICE Filed March 24, 1943 l4Sheets-Sheet l2 'IIIIIIIIA lfiventor By Attorneys SICARD 2,339,360

LOAD GATHERING, PRESSING, AND EXPELLING DEVICE Jan. 18, 1944.

Filed March 24, 1943 l4 Sheets-Sheet 13 ll llllllll' IIIII IIII InventorJzgard Y rze By I Attorney;

l. SICARD Jan. 18, 1944.

LOAD GATHERING, PRESSING, AND EXPELLING DEVICE Filed March 24, 1943 14Sheets-Sheet l4 Inventor Ji /Zea uzc a'i'zZ Attorney;

Patented Jen. s, 1944 wanoarnsnmo, PBESSING,-AND

EXPELLIN G DEVICE Ircne Sicard, Montreal, Quebec, Canada ApplicationMarch 24, 1943, Serial No. 480,282

14 Claims.

The present invention relates to a loading, load-pressing and unloadingmechanism and, more particularly, to such amechanism applicable tovehicles and carriers in general.

of course, loading and unloading devices are known, and commerciallyused, for a variety of purposes. Generally speaking, the known devicescomprise either a movable wall for expelling the load, tilting means forremoving said load when in covered enclosures or, in certain cases,tilting means and elevating means for dumping in the enclosures portionsof the load disposed in said elevating means.

But, in none of the devices briefly reviewed above, is it possible toload such material as refuse, garbage and other resilient matter,tightly compress said load evenly in a completely enclosed structureand,"thereaiter, remove quickly and completely the loaded material,without tilting the device, at the same end from which the load enteredthe structure.

Consequently, the primary object of the inven. tion resides in theprovision of means for load-,

ing an enclosed structure, compressing the load therein, and, finally,expelling the compressed load.

A further important object of the invention contemplates the provisionof means of the character described applicable easily and in a simplemanner to vehicles and carriers such as motor vehicles, railway cars,barges, etc.

Still another object is the provision of a device of the characterdescribed which is rugged, eflicient, unaffected by the materialconstituting the load, ofsimple operation and relatively low cost.

A still iurther object of the invention envisages the provision of adevice having means whereby an enclosure may be partially, or fullyloaded, said lead tightly compressed when of a springy or compressiblenature and kept in that state during transportation, for instance, andthereafter adapted to be expelled bodily and forcibly from saidenclosure.

Other objects and advantages of the invention shall become apparent, orbe specifically pointed out, in the course of the description to follow.

As a non-limitative example, an application of the device to agarbage-collecting truck is shown in the annexed drawings, wherein:

Figure l is a side elevational view of a garbage collector mounted on atruck chassis shown in dotted lines,

Figure 2 is a rear end elevational view of said collector inload-enclosing position,

Figure 3 is a vertical sectional view of the collector also 'inload-enclosing position, showing the operating mechanism,

Figure 4 is a view similar to that oi Figure 3, showing the collector inload-expelling position,

Figure 5 is an enlarged detail view of the mechanism for engaging theloading and exs i means.

,Figure 6 is, an horizontal section through the base of the loadexpelling means,

Figure 7 is a section taken on line 1-1 of Figure 3,v

Figures 8-8:; represent, in'a detailed longitudinal elevation; thecontrolling mechanism for the loading and'expelling means,

Figures 9-9a represent the same mechanism in a detail plan view,

Figure 10 is a perspective view of the end scoop constituting theloading means,

Figure 11 is a part-sectional and vertical view through the side oi thecollector, showing the scoop and the relation 01 its operating mechanismwith the side of the collector body,

Figure 12 is an enlarged detail of the operat ing mechanism shown in thepreceding figure,

Figure 13 is an enlarged detail view of the outer ends of scoop-guidingchannels in the body sides of the collector,

Figure 14 is a perspective skeleton view of the manual mechanism forselectively rendering operative either loading and expelling means,

Figure 15 is a schematic representation of the controlling mechanism ininoperative position,

Figure 16 is a similar figure showing the expelling means in operativeposition,

Figure 17 is another similar view with the loading means operative,

Figure 18 is a diagrammatic view showing the driving hydraulic means andthe hydraulic circuit thereof,

Figure 19 is an inside sectional view of the hydraulic driving cylinder,

Figure 20 is a detail view of the loading means engaging members inposition disengaged from the hydraulic means driving cable,

Figure 21 is a similar view with the members in engaged position,

or the Figure 25 is a plan' view showing the mecha nism of Figure 24 inposition on the body of the collector, .1

Figure 26 is an elevational and sectional view through the loading scoopin its initial'loading position,

Figure 27 is a similar view of the scoop in its outermost position ofloading, a

Figure 28 is still another view of the scoop in position for inwardloading movement,

Figure 29 is a further view of the scoop in well advanced inwardposition, I

Figure 30 is a partial elevation of the expelling means, constituted bya wall having springpressed sealing strips,

Figure 31 is a section taken on line 3l-4l of Figure 30, showing theposition of the sealing strip,

Figure 32 is a detail of the spring-pressed strip taken on line 32-42 ofFigure 30, and

Figure 33 isa section taken on line 33-43 of Figure 19.

Before proceeding with the detailed description of the device, it isbelieved thata summary of operation and construction will be a greathelp to the better understanding of the descriptive.

text to follow.

Briefly stated, therefore, the. collector of the invention is in theform of an elongated body,

shaped like a quadrangular tunnel and' having reinforced sides andbottom. The outer rear end of said tunnel is open, while the front endmay be closed.

A substantially vertical wall-is movable longitudinally in the tunnel,said. wall being normally aasasoo Figure 22 is-a view corresponding toFigure 20 show'nin Figure 14. said cams act onthe pivoted spring-pressedpawls shown in Figures 20, 21, 22,

23, to retract the some out of engagement with the block secured 'onth edriving cable, Thus, one carriage at a time may be connected to thedriving cable and-actuated thereby.

Finally; the. cable driving means are preferably in the: form of anhydraulic power device constituted by .a cylinder wherein a piston ismovable, back and forth, by oil pressure generated in an oil pump drivenby a truck engine, or.any other source of power, as-shown in Figure 18.

Detaile -c3 p1a1'iation of the construction and will now be given withreference to the drawings, wherein similar'reference charactersrepresent corresponding parts throughout.

In said drawingathe body of the collector is designated by the referencecharacter B which, as shown in Figure 1, is mounted on the chassis C ofthe truck shown in dotted lines and indicated at T. Said body is in theform of a quadrangular tunnel-preferably constructed of steel and formedof verticalplates 35 forming side walls having a horizontal longitudinalchannel 38 to provide internal guide'tracks, the side wall plates 25bein reenforced by. means-oi a plurality of vertical-crosssections 31.Thebody is completed by the addition of a roof plate 38, reenforced bytransverse triangular strips 39, and a floor which consists of aninnercontinuous plate 40 supported 'by theheavy base plate 4| which is inturnsuitably secured to the chassis of the truckby meansoftransverseI-beams I2.

35 All said details are clearly. in

3,4and7.

at the outermost front end of the tunnel and adapted to move backwardlyto expel the material loaded in the tunnel:- it is, therefore, broadlycalled the expelling means. I

The material is loaded into the tunnel'by means of a scoop pivoted tocarriages movable, longitudinally of the trmnel, in tracksserving alsofor the vertical expelling wall. Said scoop is shaped like a sector, theare being constituted by a circularouter plate adapted to closethe-outer rear end of the tunnel (see Figures 1, 2, 3).

The scoop is adapted to move within the tunnel to force the materialloaded against the vertical wall, thereby compressing the load to occupythe smallest possible space. Said scoop is further adapted to assume aplurality of positions, shown in Figures 26, 27, 28, 29, to facilitatethe loading of the material; said positions being made possible by thepivoted construction and channels in the sides of the body shown clearlyin the above figures.

The back and fro movement of the wall and scoop is assured by means ofside blocks engageable with block-clutching means disposed on thecarriages of said wall and scoops. The blocks are secured to travellingcables forming part of a driving system shown in Figures 24, 25, thefea-' on longitudinal angle irons, and slidable longitudinally by themanually operated mechanism As previously explained, the loading andexpelling means of the collector -jareattached to carriages movablealong tracks especially prcvided for, the purpose. v.Said tracks areprovided within a box-like enclosure disposed at thelower outside edgeofthe body, longitudinally thereof. This isshown more, particularly inFigures '11,

. 12, 13, in cross' -'section outwardly in Figure 1 wherein .the"hing'edcovers 43 are clearly shown; As illustrated clearly in Figure 12, the

' lower portion of the side plates 25 is bent angularly and outwardly toforms. flange 44 to which the doors .43, already described, are hin ed.

The continuityjo'f the wall "is extended downwardly, near thefloor'plate 40, by means of an angle plate 545 attached to the flange 44and acting [also to reenforce the lower portion of the 'body'propen Alsoshown in Figure 12, the floor-plate I0 is provided on the side marginaledges=thereof with an upwardly directed angle plate It, the upstandingportion of which is parallel to and spaced from the vertical portion ofthe angle plate 45.

The track proper comprises a longitudinal T-beam 48, received insuitable cavities of the beams 42, whereby theupper plane surface ofsaid T-beam is above the top of beams 42; this arrangement is visible inFigure 12, and in Figures 5 and 6. Said track, with the-spacedarrangement of vertical, parallel, angle plates 45- is used to receivethe carriages of the loadin and load-expelling means, said carriagesconsisting of bent steel plates similar in cross-section but differingsll ht yin their vertical dimensionsr The carriage for theloading means,or scoop, is illustrated in perspective in Figure 10 and incross-section in Figure 12, this showing applying also to the carriageof the load-expelling means,

of a vertical carriage body panel ill to which the carriage-entrainingmeans are secured. -Said panel BI is parallel with, and spaced from, an

other vertical plate 02 joined therewith at the top -by a narrowhorizontal strip 50, the plate 52 being bent angularly to form ahorizontal web 54 which, as shown in Figure'l2, is intended to rest onthe horizontal section of angle plate 46.

Finally, an upstanding extension 55 is formed on web 54, which extensionis pyramidal in shape and provided with a semi-circular enlargement 56near the apex of the extension. In

order to reenforce said extension, and also for a purpose to bedescribed later, a marginal flange 51 is formed atthe edges of extensionan body; it is, furthermore, triangularly shaped as shown in Figures 3and 4.

" Both carriages A and M are adapted to slide longitudinally of thebody, partly on the track and partly between the s aced verticalextension ofangle bars. and. Thus, the portions 5I52 of .the carriagesstraddle the plate 48, while-the vertical plate 52 is disposed betweenangles 45 and 46. Consequently, the verticalextensions 55 and ofcarriages A and M extend insidethe body, whereas thecarriagepanels'.are' outsidesaid body and adapted to be driven by amechanism-to-be-deicribed. This arrange ment has the advantage of firmlyguiding the carriages, supporting the same against distortion andforming a seal to prevent the material in thecollector fromescaping andhindering the operation of the-carriages; The body-isoutwardly-completedby. the addition of a longitudinal apron 41 securedto the beam 42 and extending downwardly to hide from view the chassis ofthe truck and associated mechanism.

The carriages are driven, back and forth. along the tracks by means of atravelling cable 65 to which a block 08 is secured, as shown clearly inFigures 20, 21, 2 2 and 23. Said blocks, one on each side of thecollector body. are adapted to be engaged by dogs pivotedto thecarriages and selectively actuated to control the movement of saidcarriages. The carriages A, on the panel ii, are provided with ahorizontal, angularly projecting bracket 61 (Fig. 10). parallel with theshoe 50 and to which bracket and shoe a pair of dogs 68 are pivoted bymeans of pins I0, Each .dog, furthermore, is formed with an upstandingextension 'II to the top of which a free roller 12 is secured.

As shown to advantage in Figure 20, the panel SI of the carriages isprovided with openings. I3 through which the inner set face of the dogis adapted to project; leaf springs I3 being provided for that purpose,which urge the lower 'set H of the dogs against the carriage panels.

Thus, the higher projection I5; tapering down to the pivoted end extendsout from the inner My the'carriage body into the path of the movingblock 00 (Fig. 21).

The dogs are retracted, at wiiL by a cam I0 engaging the rollers I2,said cam being mounted on a longitudinal angle iron I8 supported at one.

end by a rod I9 which, in turn, is'slidably dis-- posed within a bushing00 stationary with respect to said rod. The other end of-said angle ironis, supported by a bracket 8| welded to the apron 41mg. 12).Longitudinal movement 01' the cam.

to selectively retract the dogs 68, is eflectuated simply by means ofthe linkage shown in Figure 14, and which consists of a pair'of arms 82secured to a transverse rod-83, one'of th -arms 82 being connected by alink 84 to actuating lever 85 extending through the apron at the rear ofthe selector body. The arms are, in turn, linked to the rod I8 by meansof pivoted connections 86; thus, according to the position of. the lever85, shown in Fig. 14 in dotted lines, the dogs 68'can' 2g retracted orleft to engage the travelling block A similar arrangement exists forfthecarriage M which, however, carries only one dog 90 intended solely topull the vertical'wall rearwardly when engaged by the block 66. Said dog90 is retractable by means of thecam 'II- engaging a roller SI of thedog corresponding to roller 12 on the dogof carriage A. Said cam 11 isso disposed with respect to cam It that the dog 150 is released onlywhen the dogs68 are retractedithis, arrangement'will readily beunderstood when it is considered that only one carriage can be engaged,

at one time, with'the travelling block (see Figure 16). i

The driving mechanism for th carriages, embodying the block 06 alreadydescribed, consists, first of all,- of'a cylinder 85 (Figures 18, 19,24) suitably secured to the frame of the collector or truck. Saidcylinder is provided with end ports 96, 91 for the admission and exhaustof a driving .fluid, preferably oil. A piston 9.8 is movable within saidcylinder, said piston having a piston-rod 89 projecting outside thecylinder.

The ports '969I are connected, by means of ducts IOI--I02, to athree-way 'valve I03, said valve being connected to suction and pressureducts I04-I05- from the hydraulic pump I 06 driven directly from thetruck transmission I01.

According to the position of the lever I08, controlling the action ofthe valve I03, the ducts IOII02 can be connected to the ducts I04I05,this arrangement reversed, or the ducts I04I05 connected togetherwhereby, in the last case, the pump runs idle. Consequently, the oilpressure can be applied, at will, on either side of the piston and thesame moved correspondingly.

faces of the piston 98, it operates to contact the wall of the cylinderahead of the piston, whereby the closed valve I00 is lifted from itsseat, against 1 the fluid pressure tending to close it. Thus, at

each end of the piston stroke, the valve I 00 is operated'to open acommunication through the piston'body, to allow the fluid under pressureto of the bushing, from the other, 'to equalize The piston rod T99 isprovided with an outer cross-shaft III having at each end a pair ofpulleys II2 loosely mounted on said cross-shaft (Fig. 24) Other pulleysII3-II4II5-'-II6 are mounted, horizontally, on the frame or chassis ofthe truckto receive a cable I ll, one end of which is secured. at II8,to the frame and trained upwardly over the inner pulley of the pair, H2.Said cable is thereafter passed over pulleys .II3-II4'II5-II6, in theirorder, and finally trained downwardly over the outer pulley H2 to theeye-bolt II9 where it is secured. Thus, both ends of the cable arefirmly attached to the frame and trained, in opposite directions, overadjoining pulleys to form a loop passed around the pulleys II3 to H6;the reach '65 of said loop carries the block 66 already described andwhich, due to the doubled arrangement of the cable, travels twice thedistance covered by the piston actuating said cable. Since the mechanismof the present invention is always in duplicate, one for each side. thedescription Just given for one side of the driving system applies alsoto the other side and the same numerals may be used.

The means for supporting and driving the movable wall and scoop havingbeen described, the description of the construction and operation ofsaid members may now be made.

The scoop is illustrated in perspective in Figure 10 and is generallydesignated by the reference character 8. Said scoop consists,essentially, of parallel .side panels I25 substantially sectorshaped,the arcuate portion of which is closed by a curved plate I26 themarginal flange I21 of which overlies, and is welded to, the outer edgeof the panels I25. It must be noted that the upper portion I28 of thescoop plate is hinged at I29 to form a cover, the flange I30 of whichoverlies also the outer edge of the panels but is not welded, thereto.The triangular. structure described is pivoted to the centre of theupstanding extension 65 by means of a pivot pin or rivet I3I aroundwhich the scoop is adapted to oscillate; as shown to advantage in Figure10, the

edges of the panels I26 are provided with a flange I32 the edges ofwhich are sharpened so as to scrape againstthe side panels or body ofthe collector to prevent the passage of material between said scoop andsaid body. The scoop is completed by the addition of a small roller I33freely secured to the side panels I25 and the flange I21 and slightlybelow the center of the curved plate I26. The purpose of said rollerwill be explained later.

The free end of the pivoted cover I28 is upturned to form a flange I35,to which an angleiron I36, having rollers I31, is secured; said angleiron is so disposed that its horizontal portion I38 is spaced from, andparallel to, the cover I28 to form a hook-like depression adapted toprevent the upper part of the scoop from coming out of the collectorbody. I

The movable wall, generally represented in Figures 3, 4, 5, 30 and 31 bythe reference letter W, consists, as previously described, of thecarriage extension plates 66, one on each side, between which'apartition I49 extends. Said partition consists of a lowerslantingsection I and an upper curved section I42; the purpose of thisarrangement is to force loaded material upwardly, against the bodyceiling, to provide for more complete loading of the collector. Thepartition I49 is braced against'buckling by the reinforcing angle barsI49 which carry rollers I44 at the bot tom end thereof to facilitatelongitudinal movement. Said partition, furthermore, is provided with abottom scraper strip I45.'hingedly secured to the lower edge of thepartition and adapted to maintain, at all times, a sliding contact withthe floor plate 40.

As shown to advantage in Figure 31, the exten-v sions 60 are beveled onthe sides and turned .outwardly at I46 to contact snugly the sidevertical walls of -the collector body. In order that said extensions bepressed against the body walls even when said walls are slightly bulged,a spring arrangement is used which is illustrated in Figure 32. To thepartition I a number of brackets I" are welded in a line approximatelyhalfway between the angle I43 and the vertical edgeof the saidpartition; similar brackets I48 are secured in corresponding positionsonan angle bar I49 welded to the extensions 60 in line with thepartition I40.

The partition is supported in place against the angle bar I49 by meansof bolts I50 passed through holes provided in the edge of the partitionand slots I52 formed in the flange I5I and the brackets I48 weldedthereto; thus, the partition is capable of a slight lateral movement,limited by the extent of the slots. Compression springs I53 are disposedbetween the brackets I4I-I48 and are held in place by the loose boltsI54; consequently, the tension of the springs is transmitted frombrackets I41 directly to the extensions 69 through the intermediary ofbrackets I48 and flange IN. The result is a perfect scraping contactbetween movable wall and collector body, whereby all material thereincan be speed ily and completely expelled.

Reference to the drawings will show that'movable wall W is capable oflongitudinal movement only, while scoop S executes a plurality ofarcuate movements, besides the longitudinal movement. Those multipledisplacements of the scoop are necessitated by the function of thiselement which acts as a loading and pressing member.

As previously disclosed, the scoop is provided with a roller I33 on eachside thereof; said rollers are normally engaged within the longitudinalbody groove or channel 98, whereby the height of the scraping edge I58of said scoop is fixed with respect to the floor. This height iscalculated to bebarely above said floor, should undue strains tend tolift the scoop; since, however, the scoop is pivoted forwardly, awayfrom said scraping edge I56, the weight of the scoop is normallysufiicient to keep the rear edge of said scoop in scraping contact withthe floor.

The body floor is not continuously level, however, and reference toFigures 3, 26, 28, 29 will reveal that the floor plate 40 is bentangularly downwards at the rear of the body to form an inclined planeI60. To the lower edge of said plate I60 a pivoted curved section I6| isoperable to form a trough-like depression I63 into which the material tobe loaded is initially disposed, manually, by the operator of thedevice.

The curved section I6I is pivoted to the body,-

said running board are slotted at I to eng ge pins welded to suitablepoints of the side edges of the curved section, the purpose of thisarrangement being to move the running board forwardly, out of the way,and to swing also the curved section under the plate I80.

In order that the scoop may drop into the trough I53, for-load-gatheringpurposes, it is obviously necessary that means be provided to disengagethe scoop rollers from the horizontal channel 38, maintaining said scoopat the level of the floor. Such means are in the form of runways orguiding grooves provided in the side extensions I of the body and shownindetail in Figures 26, 27, 28, 29; it will be noted, in said figures,that the channel 36 bifurcates, up and down from the horizontal, into anetwork of grooves adapted to guide the scoop for a variety of angularmovements.

The said grooves are of .the same physical dimensions as the mainguiding channel 38 and merge therewith at I18, the upper groovecomprises an ascending portion I11 and a descending section I18 openingat I18 to the outer rear edge of the body extension I15. Of course, theterms "ascending" and "descending refer so the motion of the roller insaid grooves, a they travel from points I18 to [19. The lower groovecomprises an inclined portion I80, substantially parallel to the upperportion I18, and a steep, almost vertical, shorter section I8I ending atI82 just below the end I18 of the upper groove. The network is completedby the addition of a transverse, cross-groove I83 bridging togethersections I18 and I80, at approximately half their length, for a purposeto be described later. Finally, pivoted spring-pressed P wls I84-I85 andI88 are disposed at. the points I18I81-I88, respectively, in normalpositions as shown in Figure 26.

The purpo s'eof said pawls is to guide the roll-- er' II33 iniagivendirectionover one groove at the points I16I81- -I88; thus, inFigure 26, the position X of the scoop, shown in dotted lines, shows theroller I33 just emerging from the channels 36 and bridging the grooveI80 over the pawl I84. Consequently, further .movement to the right ofthe carriage A shall force the roller up the inclined groove I11, anddown the groove I18, to the position illustrated in said figure, withcorresponding movement of the. edge I56 of the scoop over whatevermaterial may be present in the trough I63.

Further movement (Fig. 27) will lower the scoop somewhat below the.floorlevel when it reaches the end of its course to the right, at I19 where,outside the groove I18, the free rollers drop, into I82, in the lowergroove IBI. This position of the moon is the outermost one of which theblock 68 is capable when coupled to the carriage A; in other words, saidblock does not travel to the right far enough to move the carriage A,and attached scoop, beyond the point where rollers I33 leave the grooveI18 just enough to drop into I82, below.

At this point, the projection I38 of the scoop cover I28 engages theturned-in portion I88 of the body roof to prevent said scoop frombecoming disengaged from the body; furthermore, this engagement of thecover acts as a pivot to swing the scoop outwardly, under conditions tobe described later.

The scoop i now in loading position; upon manipulation of the properlevers, as described before, the movement of the carriage A will bereversed, to the left, and the scoop 'moved accordingly. Since the scoopmust drop down into the trough, to gather the material therein, theguiding groove I8I is steeply inclinedso that the roller I33 may guidethe scoop edge I58 downwardly (see Figure 28); Therefore, said edge W111move close to the section II and, finally, scrape against the inclinedplane I68, as shown in liglll 29; during this movement, the rollers I |8hit the pawl I86 which drops back after their passage.

'1he material gathered by the scoop is being pushed into the body as,gradually, said scoop moves leftward until, finally, its edge IE8 isagain in contact with the floor 40 and the rollers, after passing underpawl I84, are once more in the channel 86. The leftward movement'is thencontinued until the loaded material is pushed against the movable walland compressed there; this compression, due to the inclination of saidwall, tends to force the load upwardly. Thus, the pivoted cover of thescoop may be lifted slightly o contact the roof. When this occurs, saidcontact is made by the rollers I81 (Fig. 11), their purpose being toavoid friction when this contactmg occurs.

The loading operation above described is continued until the collectorbody is filled up; the load, near the mouth of the body, might render itimpossible to push the scoop far enough, inward, to permit its comingback over pawl I84. In that case, therefore, thescoop travel is reversed and the groove I88 utilized to return the scoop to the uppergroove for another load portion; thus, the device can be filled until itis no longer possible to move the scoop inward so that the roller I33 isable to lift pawl I88. The scoop is then left in its innermost positionto hold th load compressed during transit.

The collector is now in position to be unloaded: for that purpose, thecurved section IGI and the running board are swung out of the way toallow free escape of the load. The block 88' is then disengaged fromcarriage A and moved to the front to engage dog of the movable wall.Upon causing block Iii to move rearward, the wall is carried therewithand, in so doing, expels the load from the body. Since said load, incompressed form, is likely to be bulky, it generally happens that itengages the scoop, which is now free, and pushes the same rearwardly tooccupy a position substantially as shown in Fig. 4 the rollers I33becoming disengaged entirely from the groove I18 and the carriage Apushed out of reach of the block 88.

After the movable wall has been moved to expel the load completely, itis returned to its original front position by the block .66 abutting thelug I82 secured to the carriage M by rivets 183. Since, as stated above,the carriage A is now out of reach of the block 66, it is backed in bymeans of a coupling device between both carriage consisting of a rod I85freely supported in sleeves I 96 and I81 secured, respectively, tocarriages A and M (see Figs. 5, 8, 9.10, 12) and having nuts or the likeat the ends thereof.

Once the movable wall has been pushed to its extreme forward position,the length of the rod I35 is calculated to pull the carriage A.inwardly, to a point where the block 68 can again be clutched to thedogs of said carriage; the scoop is then, once more, in position toeffectuate the movements already described.

' ing adapted or the scopeof the arcuate portion of the sides thetrough-can be So, from the foregoing description and explanations, thegeneral construction of the device object of the invention should beclear: The said device comprises, essentially, an open-ended enclosure,movable closing means for the ends, one of said movable means called thescoop beto perform a number of oscillating movements," and actuatingmeans for selectively operating one or the other movable means at will.

The advantages of this constructionare obvious: in the case of a garbagecollector, for instance, the load is dumped, in small quantities,intothe trough at the back of the collector. Due to the fact that saidtrough is relatively low, the manual labour involved is reduced to aminimum; furthermore, the back, or mouth, of the collector being open,rather bulky objects such as cases, cardboard boxes and the like can beloaded without trouble. The power-driven scoop exerting a great pressureinwardly, the load is tightly compressed whereby boxes and other hollowobjects are crushed to occupy the smallest possible space; thus, abigger load can be'transported. Again, the front closingmember beingmovable backwards, the load iseasily and quickly expelled, in rathercramped spaces, since the body is not tiltable. Other featuresincludethe rather tight sealing of the closures to prevent odors, dustand parts of the load from escaping during transit.

Finally, the driving means are so designed that foolproof operation ispossible at all times, whereby inexperienced labor can easily and safelyoperate and man the collector.

It is to-beunderstood that the form of my invention herein shown anddescribed is to be taken as a preferred example of the same, and thatvarious changes as to the shape, size and arrangement of parts may beresorted to without departing from the spirit of the invention subjoinedclaims.

Having thus described my invention, I claim:

I. A carrier of the character described, comprising an open-endedelongated body, loading means at the rear end of said body consisting ofa pivoted scoop, unloading means at the other end constituted by avertical movable wall, a troughat therear of tively engaging and movablewall, and guiding means on the body whereby the scoop may be oscillatedto pick material in the trough and load the same in the body against themovable wall.

' 2. A device of the character described, comprisingaquadrangularopen-ended body, tracks formed at the bottom of the body sides, saidtracks consisting of parallel, spaced and overlapping sections of saidsides, carriages movable in said tracks and extending partly inward andpartly outward of said body sides, a vertical movable partition securedto one of said carriages on each side. of the body, a scoop havingsectorshapedsides and an arcuate wall Joining the pivoted to anotherpair of opposed carriages, a depressed trough formed at the rearwardouter end of the body floor, and a travelling block adapted to move thepartition and scoop, whereby material in pickedfby the scoop and loadedinto the body against the movable partition acting also as aload-expelling member.

3. In a device as claimed in claim 2,'a pair of opposed spring-presseddogs disposed on the outside of the scoop the body, means forselecmoving either the scoop or carriages operable to engage thetravelling block, whereby said scoop may be moved to and fro in and outof the body, a single dog mounted on the partition carriages engageablewith the block in a rearward direction only, a lug secured to saidpartition carriages for returning said partition forwardly, rollers onsaid dogs, and manually actuating cams for retracting either the scoopor partition dogs away from the travelling block. 4

4. In a device as claimed in claim 2, a longitudinal channel formed ineach side of the body, a roller on each side of the scoop engaged insaid channels to guide said scoop, and a network of grooves extendedfrom the longitudinal channels, at the rear of the body sides, forguiding the scoop upwardly over material in the trough, down intosaidscoop behind said material and then upwardly into the body andagainst the vertical partition. 1

5. In a device as claimed in claim 2, a pivoted cover at the top of thescoop arcuate wall, and rollers at the free edge of said cover adaptedto contact the body roof when the cover is forced 7. In a device asclaimed in claim 2, upstanding vertical extensions formed on thevertical wall carriages for supporting said partition, scraper flangformed on said extensions, and spring means on the partition forpressing said flanges against the body sides.

8. In a device as tuating means comprising a cable to which said blockis secured -in the middle thereof, flxed pulleys over which the cable istrained to form a loop, and longitudinally movable pulleys over whichtheloop ends are trained in opposite directions and secured to a fixedpoint, whereby movement of said movable pulleys will result in a motionof the cable corresponding to twice the distance travelled by saidpulleys. g A

9.- In a device as claimed in claim 2, a curved section constitutingone-half of the trough, and means for swinging said section to allowfreepassage of the loadexpelled by the rearwardly travelling verticalpartition.

10. In a device as claimed in claim 2, block-actuating means including acylinder, a piston movable in said cylinder, a rod on said pistonxtending out of the cylinder for supporting pulleys, pipes for admittinga fluid under pressure at both ends of the cylinder, valvular means forcontrolling the fluid' into the fluid-admitting pipes, and by-pass meansat both ends of the cylinder operable to stop automatically admission offluid when the piston has reached the ends of its course.

11. In a device as claimed in claim 2, slidable connecting rods Joiningthe carriages of the partition and scoop, whereby said scoop may beretracted slightly when extended out of the body past the rearward endof the travelling block course.

'12. In'adevice as claimed in scraping edge hinged to the bottom of thevertical partition, and rollers at the bottom of said partition forfacilitating movement thereof.

13. A material collecting device, comprising a tubular body, a trough atthe lower part of one end of said body, an internally movable partitionnormally closing the other end of the body, a

claimed in claim 2, block-acclaim 2, a-lower

